Consider the following forms of payment systems:

- Cash

- Checks

- Credit cards

- Wire transfers

- Online payment systems (e.g., Venmo)

Which segments of the payment markets do you think each type of payment system will dominate in the future? A market segment can be characterized, for example, by

- Size of transaction (amount of money involved);

- Transactions between individuals, between companies, between individual and company;

- Type of good or service underlying transaction;

- Geographical distance between payer and payee;

- Payments involving a currency exchange;

- etc.